Update Golang version and deps

[jsdidierlaurent]

No description provided.

[codecov]

Codecov Report

Merging #394 (81daa8d) into develop (66235d0) will decrease coverage by 0.07%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##           develop     #394      +/-   ##
===========================================
- Coverage    99.71%   99.63%   -0.08%     
===========================================
  Files          104      104              
  Lines         2762     2764       +2     
===========================================
  Hits          2754     2754              
- Misses           7        8       +1     
- Partials         1        2       +1     

Flag	Coverage Δ
core	99.63% <0.00%> (-0.08%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
internal/pkg/validator/validate/validate.go	90.90% <0.00%> (-9.10%)	⬇️
registry/registry.go	100.00% <ø> (ø)
service/options/router.go	100.00% <ø> (ø)
service/router/router.go	100.00% <ø> (ø)

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[Alex-D]

Need to upgrade README and dev guide with Go 1.16 too